Outer layer paint surface spraying device and method for aluminum plate processing

Abstract

The invention relates to the technical field of material surface treatment, and discloses an outer layer paint surface spraying device and method for aluminum plate machining, the outer layer paint surface spraying device comprises a machine box, a conveyor, a collecting box and a coating mechanism, the conveyor is installed in the machine box, and the collecting box is fixedly connected to the interior of the machine box and located below the conveyor; the coating mechanism is installed in the machine box and located above the conveyor, the coating mechanism comprises a sliding assembly, and the sliding assembly comprises a reciprocating lead screw which is driven to be installed in the machine box; when the aluminum plate moves on the conveyor, the distance between the two special-shaped supports is adaptively adjusted according to the width of the aluminum plate, so that the moving distance of the pressurizing machine above the aluminum plate is limited to the top of the aluminum plate, and paint liquid sprayed by the spraying assembly can be completely sprayed to the aluminum plate; the problem that the reciprocating movement distance of the spraying assembly is too long due to the fact that the width of the aluminum plate is smaller than the length of the reciprocating lead screw, and consequently paint liquid is ineffectively sprayed is solved, the spraying efficiency is improved, and meanwhile the loss of the sprayed paint liquid is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of material surface treatment, in particular to an outer layer paint spraying device for aluminum plate processing. Background Art

[0002] In modern industrial production, aluminum plates are widely used in many fields such as construction, automobiles, aerospace, etc. due to their excellent properties, such as light weight, high strength and corrosion resistance. The quality of the paint spraying on the surface of aluminum plates is not only related to the appearance of the product, but also plays a key role in its durability and protective performance.

[0003] The traditional aluminum plate paint spraying device adopts a relatively simple and fixed structural design. During the spraying process, the spraying range cannot be flexibly adjusted according to the actual width of the aluminum plate. The reciprocating spraying mechanism moves according to a fixed stroke. When facing aluminum plates of different widths, ineffective spraying of paint liquid is likely to occur. During the reciprocating movement of the spraying component beyond the boundary of the aluminum plate, a large amount of paint liquid is sprayed to other areas inside the device, which not only causes serious waste of paint liquid, but also increases the workload of subsequent cleaning, affecting production efficiency.

[0004] Aluminum plates are very prone to dust absorption during production, transportation and storage, and some foreign particles may adhere to the surface. This causes dust particles to be mixed between the paint layer and the aluminum plate during painting. After the paint surface dries, bulging is very likely to occur, which seriously affects the adhesion of the paint to the aluminum plate surface and shortens the product's service life.

[0005] Therefore, an outer layer paint spraying device for aluminum plate processing is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide an outer paint spraying device for aluminum plate processing to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an outer layer paint spraying device for aluminum plate processing, comprising a chassis, a conveyor, a collection box and a coating mechanism, wherein the conveyor is installed inside the chassis, the collection box is fixedly connected to the inside of the chassis and is located below the conveyor, the coating mechanism is installed inside the chassis and is located above the conveyor, the coating mechanism includes a sliding assembly, the sliding assembly includes a driven reciprocating screw installed inside the chassis, and the interior of the chassis and on both sides of the reciprocating screw are symmetrically fixedly connected to the limiting frame The cam is fixedly mounted on the support frame of the machine base and is adapted to move the cam face towards the support frame, whereby the cam face is secured to the support frame during movement and the cam face is secured to the support frame during movement.

[0008] Preferably, a bidirectional thread groove is provided on the outer wall of the reciprocating screw, the top of the diamond slide is slidably connected to the outer wall of the reciprocating screw and is located between two special-shaped brackets, and the auxiliary feed plate is outwardly expanded and inclined toward the side away from the reciprocating screw.

[0009] Preferably, a spacing adjustment component is provided at the bottom of the special-shaped bracket, and the spacing adjustment component includes a slider symmetrically slidably connected to the inside of the special-shaped bracket, a second spring is fixedly connected between the top of the slider and the inner cavity of the special-shaped bracket, a hollow shaft is rotatably connected between the two sliders, the outer walls of the hollow shaft are distributed in an annular array and are fixedly connected to a gear ring, a cleaning roller is slidably connected between the two hollow shafts, and the two ends of the cleaning roller are adapted to the inner cavity of the spacing adjustment component, the outer wall of the slider is fixedly connected to a metal plate, and the metal plate is a nested structure that can be retracted, the outer wall of the special-shaped bracket is slidably connected to a first gear rod, and the bottom of the first gear rod is fixedly connected to a scraper.

[0010] Preferably, the outer wall of the cleaning roller is evenly provided with dust removal brushes, and after the first gear rod slides upward, its outer wall will engage with the gear ring, and the top of the scraper is inclined toward the side away from the cleaning roller.

[0011] Preferably, a spraying assembly is provided at the bottom of the press, and the spraying assembly includes a circular plate rotatably connected to the bottom of the press, the top of the circular plate is fixedly connected to a gear block distributed in an annular array, the interior of the circular plate is provided with a first drainage groove distributed in an annular array, and the middle of the circular plate is provided with a second drainage groove, the bottom of the press is driven to be installed with an electric drive gear rod, the bottom of the electric drive gear rod is meshed with the gear block, the outer wall of the circular plate is rotatably connected to the outer ring cover, the top of the outer ring cover is fixedly connected to the outer wall of the press, and an air outlet groove is provided inside the outer ring cover, the bottom of the circular plate is fixedly connected to the telescopic rod distributed in an annular array, the end of the telescopic rod away from the outer wall of the circular plate is fixedly connected to the third spring, the third spring and the outer wall of the circular plate are fixedly connected to the liquid accumulation box, the liquid accumulation box is sleeved on the outer wall of the telescopic rod, the side walls of the circular plate are fixedly connected to fan blades distributed in an annular array, and the fan blades are slidably connected to the inside of the outer ring cover.

[0012] Preferably, the third spring is perpendicular to the first drainage groove and is located at one end of the bottom of the circular plate. A collecting groove is provided on the top of the third spring, and the bottom of the air outlet groove is inclined toward the side close to the axis of the circular plate.

[0013] A method for spraying an outer layer of paint for aluminum plate processing comprises the following steps:

[0014] Step 1: Start the conveyor to move the aluminum plate placed on the conveyor horizontally toward the inside of the chassis, so that the aluminum plate collides with the auxiliary feeding plates on both sides when moving on the conveyor;

[0015] Step 2: After the auxiliary feed plate is squeezed, it drives the first slide bar to slide inside the chassis. At the same time, the special-shaped bracket slides relatively on the outer wall of the reciprocating screw. The spacing of the special-shaped bracket is adaptively adjusted according to the width of the aluminum plate.

[0016] Step 3: During the lateral movement, the aluminum plate will contact the scraper and cleaning roller in turn to achieve surface scraping and electrostatic dust removal;

[0017] Step 4: After starting the reciprocating screw, the slide will slide back and forth inside the limit frame due to the diamond-shaped slide sliding on the outer wall of the reciprocating screw. During the reciprocating sliding process, the slide will drive the spray assembly at its bottom to spray the aluminum plate;

[0018] Step 5: When the spraying assembly is spraying the aluminum plate, the electric drive gear rod will drive the circular plate to rotate through the gear block. When the circular plate rotates, the air outlet groove will discharge high-speed gas to the bottom and form an air curtain.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. When the aluminum plate moves on the conveyor, the distance between the two special-shaped brackets is adaptively adjusted according to the width of the aluminum plate, so that the moving distance of the pressurizer above the aluminum plate is limited to the top of the aluminum plate, so that the paint sprayed by the spray assembly can be completely sprayed on the aluminum plate, avoiding the problem of the spray assembly moving too long due to the width of the aluminum plate being smaller than the length of the reciprocating screw, resulting in ineffective spraying of the paint liquid. The spraying efficiency is improved while reducing the loss of the sprayed paint liquid. At the same time, by limiting the reciprocating distance of the spray assembly, the problem of the chassis cavity being contaminated when the spray assembly is sprayed can be effectively alleviated, and the situation of the paint liquid condensing in the chassis cavity and dripping down on the aluminum plate is reduced, avoiding the formation of blocky paint spots on the aluminum plate.

[0021] 2. The cleaning roller generates static electricity when it rotates and rubs against the metal plate. The dust on the aluminum plate passing below is removed by the static electricity adsorption of the brush on the surface of the cleaning roller. This prevents the aluminum plate from being bulged and having insufficient adhesion due to dust adhering to the surface during painting. The scraper scrapes the surface of the aluminum plate to effectively remove impurities on the surface of the aluminum plate before spraying. This prevents debris inside the equipment from falling on the aluminum plate and affecting the painting work, thereby improving the efficiency of aluminum plate paint spraying.

[0022] 3. The gas is gathered into a cone and blown at high speed from the bottom of the outer ring cover toward the aluminum plate. The paint liquid will be quickly sprayed on the surface of the aluminum plate under the action of the high-speed airflow, thereby improving the efficiency of aluminum plate spraying. At the same time, the conical air curtain formed under the outer ring cover can reduce the contact between the paint liquid and impurities in the outside air, so that the paint liquid remains pure when sprayed on the surface of the aluminum plate. The air curtain can also prevent the atomized paint liquid from being affected by the outside world and drifting, reducing the pollution to the surrounding area during paint spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 It is a top view schematic diagram of the internal structure of the present invention;

[0026] Figure 4 It is a partial schematic diagram of the sliding assembly structure of the present invention;

[0027] Figure 5 It is a schematic cross-sectional view of the overall structure of the present invention;

[0028] Figure 6 For the present invention Figure 5 A schematic diagram of the structure at center A;

[0029] Figure 7A partial schematic diagram of the spray assembly structure of the present invention;

[0030] Figure 8 This is a schematic cross-sectional view of the spray assembly structure of the present invention;

[0031] Figure 9 This is an exploded schematic diagram of the spray assembly structure of the present invention.

[0032] In the picture:

[0033] 1. Chassis; 2. Conveyor; 3. Collection box; 4. Coating mechanism;

[0034] 41. Sliding assembly; 411. Reciprocating screw; 412. Positioning frame; 413. Sliding frame; 414. Diamond slide; 415. Pressing machine; 416. Special-shaped bracket; 417. First slide; 418. First spring; 419. Auxiliary feed plate;

[0035] 42. Spacing adjustment assembly; 421. Slider; 422. Second spring; 423. Hollow shaft; 424. Gear ring; 425. Cleaning roller; 426. Metal plate; 427. First gear rod; 428. Scraper;

[0036] 43. Spraying assembly; 431. Circular plate; 432. Tooth block; 433. First drainage groove; 434. Second drainage groove; 435. Electric drive gear rod; 436. Outer ring cover; 437. Connecting rod; 438. Air outlet groove; 439. Telescopic rod; 4310. Third spring; 4311. Liquid accumulation box; 4312. Fan blade. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] The present invention provides an embodiment:

[0039] See also Figures 1 to 6A device for spraying outer paint for aluminum plate processing includes a chassis 1, a conveyor 2, a collection box 3, and a coating mechanism 4. The conveyor 2 is installed inside the chassis 1. The collection box 3 is fixedly connected to the inside of the chassis 1 and is located below the conveyor 2. The coating mechanism 4 is installed inside the chassis 1 and is located above the conveyor 2. The coating mechanism 4 includes a sliding assembly 41. The sliding assembly 41 includes a driven reciprocating screw 411 installed inside the chassis 1. A limiting frame 412 is symmetrically fixedly connected to both sides of the reciprocating screw 411 inside the chassis 1. A slide 413 is slidably connected to the inside of the limiting frame 412. The top of the slide 413 is rotatably connected to the diamond slide 414, the bottom of the slide 413 is fixedly connected to the pressurizing machine 415, the outer wall of the reciprocating screw 411 is symmetrically slidably connected to the special-shaped bracket 416, the side of the special-shaped bracket 416 close to the inner wall of the chassis 1 is fixedly connected to the first slide bar 417, the first slide bar 417 is slidably connected to the inside of the chassis 1, and the first spring 418 is fixedly connected between the special-shaped bracket 416 and the inner wall of the chassis 1. The first spring 418 is sleeved on the outer wall of the first slide bar 417, and the bottom of the special-shaped bracket 416 is symmetrically fixedly connected to the auxiliary feed plate 419 on the side away from the reciprocating screw 411.

[0040] A bidirectional thread groove is provided on the outer wall of the reciprocating screw 411 , the top of the diamond slide 414 is slidably connected to the outer wall of the reciprocating screw 411 and is located between two special-shaped brackets 416 , and the auxiliary feed plate 419 is outwardly expanded and tilted toward the side away from the reciprocating screw 411 .

[0041] When the embodiment of the present invention is actually used, the staff places the aluminum plate on the conveyor 2 and then starts the conveyor 2. During the operation, the conveyor 2 drives the aluminum plate to move toward the inside of the chassis 1. In the process of the aluminum plate moving on the conveyor 2, the auxiliary feed plate 419 is squeezed, so that the auxiliary feed plate 419 moves toward the side close to the inner wall of the chassis 1. In the process of the movement of the auxiliary feed plate 419, the special-shaped bracket 416 is driven to move together. At the same time, the first slide bar 417 slides inside the chassis 1. The first spring 418 is squeezed and elastically contracts when the special-shaped bracket 416 moves. After the symmetrically arranged special-shaped brackets 416 slide relatively away from the outer wall of the reciprocating screw rod 411, the movable distance of the diamond slide plate 414 on the outer wall of the reciprocating screw rod 411 is shortened due to the obstruction of the special-shaped bracket 416. The spacing between the two special-shaped brackets 416 is equal to the width of the aluminum plate.

[0042] When the aluminum plate moves to the inside of the chassis 1, the reciprocating screw 411 is energized and starts to rotate. When the reciprocating screw 411 rotates, the diamond slide 414 will slide inside the threaded groove on the outer wall of the reciprocating screw 411 due to the limitation of the limit frame 412. When the diamond slide 414 and the slide 413 move, they will drive the press 415 to slide back and forth above the aluminum plate, and then the paint surface of the aluminum plate is sprayed through the spray assembly 43 under the press 415.

[0043] When the aluminum plate moves on the conveyor 2, the distance between the two special-shaped brackets 416 is adaptively adjusted according to the width of the aluminum plate, so that the moving distance of the press 415 above the aluminum plate is limited to the top of the aluminum plate, so that the paint sprayed by the spray component 43 can be completely sprayed on the aluminum plate, avoiding the problem of the spray component 43 moving back and forth too long and the paint being sprayed ineffectively because the width of the aluminum plate is less than the length of the reciprocating screw 411. The spraying efficiency is improved while the loss of the sprayed paint is reduced. At the same time, by limiting the reciprocating distance of the spray component 43, the problem of the inner cavity of the chassis 1 being contaminated when the spray component 43 is spraying can be effectively alleviated, and the situation where the paint condenses in the inner cavity of the chassis 1 and drips down on the aluminum plate is reduced, thereby avoiding the formation of block-shaped paint spots on the aluminum plate.

[0044] See also Figures 5 and 6 A spacing adjustment component 42 is provided at the bottom of the special-shaped bracket 416, and the spacing adjustment component 42 includes a slider 421 symmetrically slidably connected to the inside of the special-shaped bracket 416, and a second spring 422 is fixedly connected between the top of the slider 421 and the inner cavity of the special-shaped bracket 416, and a hollow shaft 423 is rotatably connected between the two sliders 421, and the outer wall of the hollow shaft 423 is fixedly connected with a gear ring 424 distributed in an annular array, and a cleaning roller 425 is slidably connected between the two hollow shafts 423, and the two ends of the cleaning roller 425 are adapted to the inner cavity of the spacing adjustment component 42, and the outer wall of the slider 421 is fixedly connected with a metal plate 426, and the metal plate 426 is a nested structure that can be retracted and retracted. The outer wall of the special-shaped bracket 416 is slidably connected with a first gear rod 427, and the bottom of the first gear rod 427 is fixedly connected with a scraper 428.

[0045] The outer wall of the cleaning roller 425 is evenly provided with dust removal brushes. After the first gear rod 427 slides upward, its outer wall will engage with the gear ring 424, and the top of the scraper 428 is inclined to the side away from the cleaning roller 425.

[0046] In actual use of the embodiment of the present invention, when the aluminum plate moves on the conveyor 2 toward the inside of the chassis 1, the scraper 428 will slide upward on the outer wall of the special-shaped bracket 416 because its inclined surface is squeezed by the aluminum plate. During the upward sliding process of the first gear rod 427, it will drive the hollow shaft 423 to rotate by engaging with the gear ring 424. When the hollow shaft 423 rotates, it will drive the cleaning roller 425 to rotate together. During the rotation process of the cleaning roller 425, the brush on the surface of the cleaning roller 425 will rub against the metal plate 426 and generate static electricity. 2 moves up to contact with the brush on the surface of the cleaning roller 425, the static-charged brush will electrostatically absorb the dust on the aluminum plate. At the same time, for larger impurities on the aluminum plate, the scraper 428 will fit the upper surface of the aluminum plate through its bottom to scrape off the impurities on the aluminum plate. When multiple aluminum plates are continuously transported on the conveyor 2, the scraper 428 will be continuously squeezed upward, so that the cleaning roller 425 will continuously rub against the metal plate 426 when an aluminum plate passes under it to generate static electricity, and continuously absorb the dust on multiple aluminum plates.

[0047] The cleaning roller 425 generates static electricity by rubbing against the metal plate 426 during rotation, so that the aluminum plate passing below is freed of dust by the electrostatic adsorption of the brush on the surface of the cleaning roller 425, thereby preventing the aluminum plate from bulging and insufficient adhesion of the paint surface due to dust adhering to the surface during painting. The scraper 428 scrapes the surface of the aluminum plate, so that impurities on the surface of the aluminum plate can be effectively removed before spraying, thereby preventing debris inside the equipment from falling on the aluminum plate and affecting the painting work of the aluminum plate, thereby improving the efficiency of the paint spraying of the aluminum plate.

[0048] See also Figures 7 to 9 The bottom of the press 415 is provided with a spraying assembly 43, which includes a circular plate 431 rotatably connected to the bottom of the press 415, and a tooth block 432 is fixedly connected to the top of the circular plate 431 in an annular array. The inside of the circular plate 431 is provided with a first drainage groove 433 in an annular array, and a second drainage groove 434 is provided in the middle of the circular plate 431. The bottom of the press 415 is driven and installed with an electric drive gear rod 435, and the bottom of the electric drive gear rod 435 is engaged with the tooth block 432. The outer wall of the circular plate 431 is rotatably connected to the outer ring cover 436, and the top of the outer ring cover 436 is connected to the press A connecting rod 437 is fixedly connected between the outer walls of 415, an air outlet groove 438 is opened inside the outer ring cover 436, and the bottom of the circular plate 431 is fixedly connected with a telescopic rod 439 distributed in a circular array. The end of the telescopic rod 439 away from the outer wall of the circular plate 431 is fixedly connected with a third spring 4310, and a liquid accumulation box 4311 is fixedly connected between the third spring 4310 and the outer wall of the circular plate 431. The liquid accumulation box 4311 is sleeved on the outer wall of the telescopic rod 439, and the side wall of the circular plate 431 is fixedly connected with fan blades 4312 distributed in a circular array. The fan blades 4312 are slidably connected to the inside of the outer ring cover 436.

[0049] The third spring 4310 is perpendicular to the first drainage groove 433 and is located at one end of the bottom of the circular plate 431 . A collecting groove is provided on the top of the third spring 4310 , and the bottom of the air outlet groove 438 is inclined toward the side close to the axis of the circular plate 431 .

[0050] When the embodiment of the present invention is actually used, the paint liquid will flow into the circular plate 431 below the pressurizing machine 415. At the same time, after the electric drive gear rod 435 is powered on and rotated, it will drive the circular plate 431 to rotate together through the gear block 432. The third spring 4310 slides to the side close to the edge of the circular plate 431 under the action of centrifugal force when the circular plate 431 rotates. When the telescopic rod 439 contracts, the liquid accumulation box 4311 will elastically contract, so that the third spring 4310 no longer blocks the first drainage groove 433. The paint liquid flowing into the interior of the circular plate 431 is diffused under the guidance of the first drainage groove 433 and the second drainage groove 434 to spray the aluminum plate below it. The diversion of the multiple first drainage grooves 433 can make the paint surface sprayed more evenly. When the paint liquid leaves the first drainage groove 433, it will be instantly subjected to air resistance to produce an atomization reaction, so that the paint liquid is sprayed on the aluminum plate more delicately, thereby avoiding the problem of uneven paint thickness on the aluminum plate after spraying.

[0051] During the rotation of the circular plate 431, the fan blades 4312 will drive the fan blades 4312 to slide inside the outer ring cover 436. The outer ring cover 436 is fixed to the pressurizer 415 due to the top connecting rod 437. During the rotation of the fan blades 4312 inside the outer ring cover 436, a large amount of airflow will be introduced into the interior of the air outlet groove 438. During the process of continuously injecting gas into the outer ring cover 436, the gas will be discharged to the bottom of the outer ring cover 436. At this time, because the lower opening of the air outlet groove 438 is narrowed and inclined to the side close to the axis of the circular plate 431, the gas is gathered into a cone shape and blown at high speed from the bottom of the outer ring cover 436 toward the aluminum plate. The paint liquid will be quickly sprayed on the surface of the aluminum plate under the action of the high-speed airflow, thereby improving the efficiency of the aluminum plate spraying. At the same time, the conical air curtain formed below the outer ring cover 436 can also reduce the contact between the paint liquid and impurities in the outside air, so that the paint liquid remains pure when sprayed on the surface of the aluminum plate. The air curtain can also prevent the atomized paint liquid from being affected by the outside world and drifting, reducing the pollution to the surrounding area during paint spraying.

[0052] The present invention provides another embodiment:

[0053] A method for spraying an outer layer of paint for aluminum plate processing is now proposed, comprising the following steps:

[0054] Step 1: Start the conveyor 2 to move the aluminum plate placed on the conveyor 2 laterally toward the inside of the chassis 1 on the conveyor 2, so that the aluminum plate collides with the auxiliary feed plates 419 on both sides when moving on the conveyor 2;

[0055] Step 2: After the auxiliary feed plate 419 is squeezed, it drives the first slide bar 417 to slide inside the chassis 1. At the same time, the special-shaped bracket 416 slides relatively on the outer wall of the reciprocating screw 411. The spacing of the special-shaped bracket 416 is adaptively adjusted according to the width of the aluminum plate.

[0056] Step 3: During the lateral movement, the aluminum plate contacts the scraper 428 and the cleaning roller 425 in sequence, achieving surface scraping and electrostatic dust removal.

[0057] Step 4: After the reciprocating screw 411 is started, the slide 413 will slide back and forth inside the limit frame 412 due to the diamond-shaped slide plate 414 sliding on the outer wall of the reciprocating screw 411. During the reciprocating sliding process, the slide 413 will drive the spray assembly 43 at its bottom to spray the aluminum plate;

[0058] Step 5: When the spraying assembly 43 is spraying the aluminum plate, the electric drive gear rod 435 drives the circular plate 431 to rotate through the gear block 432. When the circular plate 431 rotates, the air outlet slot 438 discharges high-speed gas to the bottom and forms an air curtain.

[0059] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0060] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An outer layer paint spraying device for aluminum plate processing, comprising a chassis (1), a conveyor (2), a collection box (3) and a coating mechanism (4), characterized in that: The conveyor (2) is installed inside the chassis (1), the collecting box (3) is fixedly connected to the inside of the chassis (1) and is located below the conveyor (2), the coating mechanism (4) is installed inside the chassis (1) and is located above the conveyor (2), the coating mechanism (4) includes a sliding assembly (41), the sliding assembly (41) includes a driven reciprocating screw (411) installed inside the chassis (1), and the inside of the chassis (1) and the two sides of the reciprocating screw (411) are symmetrically fixedly connected with a limiting frame (412), the inside of the limiting frame (412) is slidably connected to a slide (413), and the top of the slide (413) is rotatably connected to a diamond slide (414), the bottom of the slide (413) is fixedly connected to a press (415), the outer wall of the reciprocating screw (411) is symmetrically slidably connected to a special-shaped bracket (416), the side of the special-shaped bracket (416) close to the inner wall of the chassis (1) is fixedly connected to a first slide bar (417), the first slide bar (417) is slidably connected to the inside of the chassis (1), the special-shaped bracket (416) and the inner wall of the chassis (1) are fixedly connected to a first spring (418), the first spring (418) is sleeved on the outer wall of the first slide bar (417), and the bottom of the special-shaped bracket (416) away from the reciprocating screw (411) is symmetrically fixedly connected to an auxiliary feed plate (419).

2. The outer layer paint spraying device for aluminum plate processing according to claim 1, characterized in that: The outer wall of the reciprocating screw (411) is provided with a bidirectional thread groove, the top of the diamond-shaped slide plate (414) is slidably connected to the outer wall of the reciprocating screw (411) and is located between two special-shaped brackets (416), and the auxiliary feed plate (419) is outwardly expanded and inclined toward a side away from the reciprocating screw (411).

3. The outer layer paint spraying device for aluminum plate processing according to claim 1, characterized in that: The bottom of the special-shaped bracket (416) is provided with a spacing adjustment component (42), and the spacing adjustment component (42) includes a slider (421) symmetrically slidably connected to the inside of the special-shaped bracket (416), and a second spring (422) is fixedly connected between the top of the slider (421) and the inner cavity of the special-shaped bracket (416), and a hollow shaft (423) is rotatably connected between the two sliders (421), and the outer wall of the hollow shaft (423) is fixedly connected with a gear ring (423) distributed in an annular array. 24), a cleaning roller (425) is slidably connected between the two hollow shafts (423), and both ends of the cleaning roller (425) are adapted to the inner cavity of the spacing adjustment component (42), and the outer wall of the slider (421) is fixedly connected to a metal plate (426), and the metal plate (426) is a nested structure that can be telescopic, and the outer wall of the special-shaped bracket (416) is slidably connected to a first gear rod (427), and the bottom of the first gear rod (427) is fixedly connected to a scraper (428).

4. The outer layer paint spraying device for aluminum plate processing according to claim 3, characterized in that: The outer wall of the cleaning roller (425) is evenly provided with dust removal brushes. After the first gear rod (427) slides upward, its outer wall will engage with the gear ring (424), and the top of the scraper (428) is inclined toward the side away from the cleaning roller (425).

5. The outer layer paint spraying device for aluminum plate processing according to claim 1, characterized in that: The bottom of the press (415) is provided with a spraying assembly (43), and the spraying assembly (43) includes a circular plate (431) rotatably connected to the bottom of the press (415), the top of the circular plate (431) is fixedly connected with a tooth block (432) in an annular array, the inside of the circular plate (431) is provided with a first drainage groove (433) in an annular array, and the middle of the circular plate (431) is provided with a second drainage groove (434), the bottom of the press (415) is driven to be installed with an electric drive gear rod (435), the bottom of the electric drive gear rod (435) is meshed with the tooth block (432), the outer wall of the circular plate (431) is rotatably connected with an outer ring cover (436), the top of the outer ring cover (436) and the press A connecting rod (437) is fixedly connected between the outer walls of the machine (415), an air outlet groove (438) is opened inside the outer ring cover (436), and the bottom of the circular plate (431) is fixedly connected with a telescopic rod (439) distributed in an annular array, and the end of the telescopic rod (439) away from the outer wall of the circular plate (431) is fixedly connected with a third spring (4310), and a liquid accumulation box (4311) is fixedly connected between the third spring (4310) and the outer wall of the circular plate (431), and the liquid accumulation box (4311) is sleeved on the outer wall of the telescopic rod (439), and the side wall of the circular plate (431) is fixedly connected with a fan blade (4312) distributed in an annular array, and the fan blade (4312) is slidably connected to the inside of the outer ring cover (436).

6. The outer layer paint spraying device for aluminum plate processing according to claim 5, characterized in that: The third spring (4310) is perpendicular to the first drainage groove (433) and is located at one end of the bottom of the circular plate (431). A collection groove is provided on the top of the third spring (4310), and the bottom of the air outlet groove (438) is inclined toward the side close to the axis of the circular plate (431).

7. A method for spraying an outer layer of paint for aluminum plate processing, the method being based on the outer layer of paint spraying device for aluminum plate processing according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: Start the conveyor (2) to move the aluminum plate placed on the conveyor (2) laterally toward the inside of the chassis (1) on the conveyor (2), so that the aluminum plate collides with the auxiliary feed plates (419) on both sides when moving on the conveyor (2); Step 2: After the auxiliary feed plate (419) is squeezed, it drives the first slide bar (417) to slide inside the chassis (1), and at the same time, the special-shaped bracket (416) slides relatively on the outer wall of the reciprocating screw rod (411), and the spacing of the special-shaped bracket (416) is adaptively adjusted according to the width of the aluminum plate; Step 3: The aluminum plate will contact the scraper (428) and the cleaning roller (425) in sequence during the lateral movement to achieve surface scraping and electrostatic dust removal; Step 4: After the reciprocating screw (411) is started, the slide (413) will slide back and forth inside the limit frame (412) due to the diamond-shaped slide plate (414) sliding on the outer wall of the reciprocating screw (411). During the reciprocating sliding process, the slide (413) will drive the spray assembly (43) at its bottom to spray the aluminum plate; Step 5: When the spraying assembly (43) sprays the aluminum plate, the electric drive gear rod (435) drives the circular plate (431) to rotate through the gear block (432). When the circular plate (431) rotates, the air outlet groove (438) discharges high-speed gas to the bottom and forms an air curtain.

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